public class CarTest {
    public static void main(String[] args) {
        Car Car=new Car();
        Car.pailiang = 100;
        Car.weight = 100;
        Car.brand = "拖拉机";
        Car.mali=100;
        Car.show();
        Car2 car=new Car2();
        car.mingdi();
        car.start();
        car.stop();
    }
}
